Projecting apparatus



July 15, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS 18 Sheets-Sheet 1 Original Filed Aug. 16, 1965 7%Mmmm W /a A 20 v INVENTOR. JOHN A. BARING AGENT.

July 15, J. A. BARNG PROJECTING APPARATUS Original Filed Aug. 16, 196518 Sheets-Sheet 2 will ' V llllllllllllu!J 4 l /4 INVENTOR.

JOHN A. BARING MM/mv AGENT.

July 15, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16. 1965 18 Sheets-Sheet 5AGENT.

July l5, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 4 E lG. 7 20 FIG. 8

INVENTOR JOHN A`. BARING BY u i g 4 AGENT.

July 15, 1969 J.A.BAR1NG 3,455,441

v PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 5 Fl G, 9 50 f l l INVENTOR. JOHN A. BARING AGENT.

July 15, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 6 F lG. lO Ba! 52 /48 368 /364 INVENTOR JOHN A. BAR ING gumm- AGENT.

July 1s, 1969 J- A- BARING PROJ ECTING APPARATUS Original'Fled Aug. 16.1965 18 Sheets-Sheet '7 INVENTOR JOHN A. BARING 513W www AGENT l July15, 1969 J. A. BARING 3,455,441

PROJ ECTING APEARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 8INVENTOR. JOHN A. BARING AGENT.

original Filed Aug. 1s, 19555 18 Sheets-Sheet 9 INVENTOR. JOHN A. BARINGAGENT.

July 15, 1969 J. A. BARING l 3,455,441

PROJEGTING APPARATUS original Filed Aug. 1e, 1965 18 sheets-sheet 1o lXX i 52"5 La; l 34g 1mm) 226 220` 22% il? u L7 7 g l 1 l 22mm l l2642/8' 248 this FIG.

INVENTOR. JOHN A. BARING www AGENT.

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PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 11 F lG. I6

INVENTOR. JOHN A. BARING BY E AGENTI J. A. BARING PROJECTING APPARATUSJuly 15, 1969 18 Sheets-Sheet 12 Original Filed Aug. 16. 1965 INVENTOR.JOHN A. BARING BSLMQgM/,mzw

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J. A. BARING PRUJECTING APPARATUS July 15, 1969 y 18 Sheets-Sheet 15original Filed Aug. 1e, 196s INVENTOR. JOHN A. BARING AGENT,

July 15, 1969 J. A. BARING PROJECTING APARATUs original Fned Aug. 1s,1965 18 Sheets-Sheet 14 FIG.

INVENTOR. JOHN A. BARNG @Bim AGENT.

Juli' 15, 1969 .|.A. BARING 3,455,441 PnoJEcTxNG APPARATUS originalFiled Aug. 1s, 1965 18 sheets-sheet 1s F'l G. 2o

INVENTOR. JOHN A. BARING gra# AGENT.

July 15, 1969 J. A. BARING 3,455,441

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United States Patent Oflice 3,455,441 Patented July 15, 1969 U.S. Cl.206-73 9 Claims ABSTRACT OF THE DISCLOSURE A compact slide projectortray having a front and.

back spaced apart annular face portions attached to a central hub. Aseries of radially positioned spaced-apart spacer lplates extendingbetween the front and back face portions to guide the inner end of theslides inserted therein into contact with the outer surface of the huband into contact with adjacent slides positioned therein.

This is a division of application Ser. No. 479,827 filed Aug. 16, 1965,now U.S. Patent No. 3,359,667.

The present invention relates to a photographic slide tray projector.

More specifically, it is an object of the present invention to disclosea compact, thin line projector having a ringshaped wall extendinginwardly from the front of the projector to receive a removable rotaryslide tray therein.

It is another object of the present invention to disclose a rotatableslide tray for the aforementioned projector that is provided with aseries of unique, abnormally short, radially oriented spacer platesadjacent its outer circumferential rim to allow the inner ends of slidesinserted therebetween to be mounted in extremely close proximity withone another adjacent the hub of a slide tray, thereby enabling many moreslides to be mounted in a much smaller diameter tray than has heretoforebeen possible when other different types of slide tray constructionsthat are commercially available have been employed.

It is another object of the present invention to disclose a rotatableslide tray of the aforementioned type having a side ring portion thereofthat has a circumferential portion forming an outer surface of theprojector that is of a greater diameter than an opposite disc sideportion that forms an inside projector portion to enable the slide to bemore easily inserted and removed in a substantially frictionless mannerinto an in-gate projecting position than is possible when otherconventional slide trays whose outer surface are of the same uniformdiameter are employed for this purpose.

It is another object of the present invention to disclose a bendabletransparent cup-shaped slide selecting indexing lid for theaforementioned tray that has a central cut out portion that is of agreater diameter than the hub of the tray about which the lid can beselectively rotated to line up a slotted rim slide emitting portion anda magnifying portion of the lid with any selected one of the slides inthe tray.

It is another object of the invention to provide the aforementioned lidwith several pairs of spaced-apart accurate lug portions protruding froman inner wall and base surface thereof to thereby allow the lid to besnapped into a slide retaining position on the tray and to provideguiding surfaces along which a rim surface of the tray can slide.

It is another object of the present invention to disclose a projectorhaving a rotary slide tray of the aforementioned type in combinationwith a rotatably mounted moving magnet for easily attracting and liftinga slide from its radial position in the aforementioned tray in anoutward direction away from the rim of the tray through the singleslotted Iportion of the lid to an in-gate projecting position in aprojector and with a great deal less wear and tear on the slide than ispossible when other types of projector trays and slide lifting devicesthat are commercially available are employed for this purpose.

Prior to the present invention, it has lbeen the practice to employpower actuating apparatus such as an electric motor to move a slide in acontinuous pushing manner from an in-tray position to a projectingposition and to employ this same power actuating means to return theslide in a continuous pulling manner to the in-tray position. Experiencehas shown that when these power actuating means are used to push and/orto pull a slightly bent slide in this continuous manner between itsin-tray and its projecting positions, the bent portion of such a slideinvariably has a tendency to become jammed and further bent between thepower actuating means and a stationary portion of the slide guidethrough which the slide is being continuously moved.

Continuously operated power actuated slide moving devices of this typealso often jam a slide in the projector without the operators knowledge.When this occurs, the next slide that is continuously pushed into theprojector is forced against the slide that is already in the projectorand further bending of both slides occurs.

It is another object of the present invention to provide a slide movingapparatus for a projector which will vertically lift the top portion ofthe slide rather than using a continuous pushing force on a slide inmoving it from its in-tray to its projecting position and therebyeliminate the aforementoned slide jamming problem that is present inother slide projectors that are commercially available.

It is another object of the present invention to disclose a slide movingapparatus for a projector which will return a slide that is in aprojecting position to its in-tray position by allowing the slide to bedropped in a vertical plane toward and into the rim of its associatedtray by the force of gravity acting on the slide rather than by thepulling force of a power operated slide moving device and therebyeliminate the aforementioned slide jamming that occurs when theaforementioned power actuated slide moving devices are used.

A better understanding of the present invention may be had from thefollowing detailed description when read in connection with theaccompanying drawings in which:

FIGURE l shows a prospective View of the projector;

FIGURE 2 is a top view of the projector;

FIGURE 3 is a left side view of the projector;

FIGURE 4 is a back View of the projector;

FIGURE 5 shows in detail a front View of a circular tray that isretained within the aforementioned projector;

FIGURE 6 is a back view of the tray;

FIGURE 7 is a side view of the tray;

FIGURE 8 is a section taken along the line 8--8 of FIGURE 6 with the topfront plate removed;

FIGURE 9 shows a front view of the projector with its back plateremoved;

FIGURE 10 shows a rear view of the projector;

FIGURE ll shows a vertical section taken along Section line 11-11 ofFIGURE 9;

FIGURE 12 is a sectional view taken along the line 12-12 of FIGURE l0;

FIGURE 13 is a view partially in section taken along the line 13-13 ofFIGURE l0;

FIGURE 14 is a view showing theI projector lens and how its associatedcam-actuated lens carrier can move the lens from one position toanother;

FIGURE l5 is a view along line 15-15 of FIGURE I4 showing the right endview of the lens carrier;

FIGURE 16 is a view of the main and secondary cams shown in FIGURES l2and 13;

FIGURE 17 shows the position of the slide-lifting drive bar and shutteras this cam-driven, magnet-carrying drive bar is starting to move theslide in an upward position from the tray;

FIGURE 18 shows the show position of the slide lifting drive bar andshutter as the aforementioned camdriven, magnet-carrying drive bar hasmoved the slide into an in-gate slide projecting position;

FIGURE 19 shows the position of the slide-lifting drive bar and shutteras this cam-driven, magnet-carrying drive bar is starting to let theslide be returned by gravity to the tray;

FIGURE 20 shows the position of the slide-lifting drive bar and shutteras this cam-driven, magnet-carrying drive bar has moved the slide backinto its original slide tray position and the tray is being rotated tobring the next slide in the tray to a twelve oclock position;

FIGURE 21 shows a top plan View of the slide guides as taken along theline 21-21 of FIGURE l1 and how a movable permanent magnet, such as isshown in FIG- URES 16 and 25, is attached to a slide;

FIGURE 22 shows how a damping device' can be connected to the solenoidactuator shown in FIGURES 10 and 13;

FIGURE 23 shows a right end view of FIGURE 22;

FIGURE 24 shows an up or show slide position of the index lock Cam andits associated linkage;

FIGURE 25 shows the lock cam of FIGURE 24 rotated counter-clockwise to aposition in which no editing of the slides can take place;

FIGURE 26 shows the drive bar at its lowermost position and its lugthereof as having rotated the interlock cam further in acounter-clockwise direction;

FIGURE 27 is a circuit diagram showing the relationship that existsbetween all of the electrical components disclosed in FIGURES 9, 10, 13and 16.

The rotary slide projector 10 shown in FIGURES 1 4 of the drawing iscomprised of a front half casing portion 12 and a rear half casingportion 14. The front half casing portion 12 has a ring-shaped wall 16extending inwardly from a lower front surface 18 thereof for retaining arotary slide tray y20 therein. The upper part 22 and the top part 24 ofthe front casing portion 12 is of a separate angular single partconstruction and has a wall 26 forming an opening therein to accommodatethe sliding of the slide editing gate 28 therethrough.

The right side 30 of the front half casing portion 12 of the projector10 is shown having a projecting lens 32 extending therethrough. Theentire base part 34 of the front half casing portion 12 is shown taperedin an upward and outward direction between the part that contacts therear half casing portion 14 and the portion `of the base that contactsthe lower front surface 18.

The entire base part 36 of the rear casing portion 14 is also showntapered in an upward and outward direction between the part thatcontacts the front half casing portion 12 andthe portion of the rear endof the base part 36 that contacts the lower end of the back surface 38of the rear half casing portion 14.

The upper left side of the projector 10 is formed by two contacting wallportions 40, 42 that form respective parts of the front and rear halfcasing portions 12 and 14. The lower left side of the projector 10 isformed of a single slidable door plate portion 44 having a handle 46thereon that can be moved in an upward vertical direction to a positionthat is immediately behind its contacting wall portions 40, 42. Thisdoor 44 provides access to a compartment (not shown), that contains aslide tray loading switch, a slide showing switch and a switch foreither showing the slides in tray in immediate consecutive forwardmanner, a switch for showing the slides in the tray in a reversesequence and an electrical power plug-in wire connection which isnecessary to supply an electrical current to the projector 10.

The upper right and left side wall portions 42, 48 of the rear halfcasing portion 14 of the projector 10 have portions that are integraltherewith which extend upwardly therefrom to form a projector handle 50.

A push button 52 extends through an aperture 54 in the top surface ofthe rear half casing portion 14 of the projector 10 fto move a linkagehereinafter described which will adjust the position of two legs 54, 56against a level or non-level surface on which the projector 10 isplaced.

These legs 54, 56 are shown extending through the respective taperedbase parts 34, 36 of the front and rear half casing portions 12 and 14while the projector 10 is pivoted about stationary resilient foot 58that is shown in FIGURE 3. The tapered base parts will thus enable theprojector to be placed in a position in which the front half of thecasing portion is upward and spaced away from a non-level supportsurface or vice versa.

ROTARY SLIDE TRAY The previously-mentioned rotary slide tray 20 shown inFIGURES 1 and 5-8 is complised of two space-apart circumferential sidering and disc portions 62, 64 that are of different diameters and thatare integrally joined together at their central portion by means of ahub 66.

A series of substantially equally spaced apart radially oriented spacerplates 68, 70, 72, 74 are also joined together in an integral mannerwith the outer circumferential side -ring and disc portions 62, 64.These spacer plates 67-74 are purposely positioned adjacent thecircumferential ring and disc portions 62, 64 of the tray 20 in order toallow the inner end of the Slides, for example the slides 76, 78, and 82shown in FIGURE 1 that are to be dropped from a position that is locatedoutwardly from the peripheral portion of the tray into a load positionso that their inner ends are in contact with the hub 66 and brought intoextremely close proximity with one another.

It can thus be seen from FIGURE 1 that such a tray construction willenable many more slides to be mounted in a much smaller tray than hasheretofore been possible when other types of commercially-availabletrays are used.

It can also be seen by observing FIGURE 1 that since the spacer plates,for example 68, 74, are positioned between spaced-apart side ring anddisc portions 62, 64 of the tray 20 that are purposely made ofconsiderably different diameters, the slides can, therefore, be readilyinserted and Iremoved from the tray 20 in a substantially frictionlessmanner. Such a tray construction, therefore, considerably reduces thefrictional slide spacer rubbing effect that has heretofore beenencountered with trays that have side ring portions that are of the samediameter.

The rotary slide tray 20 is also provided with a bendable transparentcup-shaped slide selecting indexing lid `84. The indexing lid 84 has awall 86 forming an aperture in its central portion to enable the slideindexing tray 20 to be rotated about its outer hub portion 66.

An inner surface adjacent the outer circumferential part of the lid 84is provided with three pairs of arcshaped lug portions 88, 90, 92, 94,and 96, 98 which protrude from the inner side wall and the inner basesurface of the cup-shaped lid 84. The lug portions 88-98 are located ina position with respect to the ring portion 62 that allows the lid to besnapped into a slide retaining position on the ring portion 62. Theselug portions 88-98 also provide guiding surfaces along which the lid 84can rotatably slide along the tray portion 62 when a slide indexingoperation takes place.

The indexing lid 84 also has a circular flange portion 100 and arectangular protuberance 102 that extends in an outward directiontherefrom that acts as a removable twelve oclock indexing key wheninserted into

